The point is not to "create runout routes" but to "respect the original ascent style by avoiding the addition of new fixed gear which would detract from the original ascent". 
  
Runouts are a part of climbing. If you can't deal with them, maybe you should focus on the existing climbs which are well protected, or on establishing NEW well protected climbs, instead of adding protection to an existing climb to bring it within your comfort threshold? Just a thought, cause for some people head control during a difficult runout is an integral part of the climbing experience. 
  
As for Cobra Crack - everyone from Peter Croft thru Hamish, Greg, Jim Sandford, to the newest hotshots on da scene like Andrew Boyd and Jordan Wright, have tried to free it - no dice so far. severely overhanging to roof rattle fingers with no feet. Fun clean aid though! Hangs way out over the trail.